这部电影根据真实战役改编，让人深受感动。

Zhè bù diànyǐng gēnjù zhēnshí zhànyì gǎibiān, ràng rén shēnshòu gǎndòng.

This film is adapted from a real battle and is deeply moving.

老师用地图给我们讲解了这次战役的过程。

Lǎoshī yòng dìtú gěi wǒmen jiǎngjiě le zhè cì zhànyì de guòchéng.

The teacher used a map to explain the course of this battle to us.

经过几次关键战役，战争的形势终于发生了变化。

Jīngguò jǐ cì guānjiàn zhànyì, zhànzhēng de xíngshì zhōngyú fāshēng le biànhuà.

After several key battles, the situation of the war finally changed.